﻿/**********************   日期选择  ***************************
 *    @作者        : Enjoyd
 *    @Email        : [email]enjoyd@126.com[/email]
 *    @OICQ        : 5003427
 **************************************************************/
var MonthDNum = new Array(0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var MonthText = new Array("", "一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月");
var Calendar_obj, Calendar_obj2;
//var WriteHead=1;
document.write('<iframe style="position:absolute;width:206px;display:none;z-index:1000;" name="divCalendar" id="divCalendar" frameborder="0" scrolling="no"></iframe>')
/*头部信息css及js函数*/
var HeadMsg = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' +
    '<html xmlns="http://www.w3.org/1999/xhtml">' +
    '<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style type="text/css"><!--' +
    'body,html{margin:0px;height:100%;background:#FFF;}a,li,input {font-family:"Verdana","Arial";font-size:12px;}' +
    'a {height:18px;color:#000;padding-top:2px;text-decoration:none;display:block;}' +
    'a:hover{height:17px;padding-top:1px;border:1px solid #000;background:#FFF;}' +
    '.CurrentDate {height:17px;padding-top:1px;border:1px solid #000;background: #FFF;}' +
    'ul{list-style:none;margin:0px;padding:0px;overflow:hidden;}' +
    'ul li{float:left;margin-left:1px;padding-top:1px;display:inline;text-align:center;width:28px;height:20px;}' +
    '#Tools {width:204px;background:#44b6ae;padding:0px;}' +
    '#Tools li{padding-bottom:1px;}' +
    '#Tools a{color:#FFF;}' +
    '#Tools a:hover{border:1px solid #09fae9;background:#15f9e9;}' +
    '#Title {width:204px;background:#56da9e;border-bottom:1px solid #000;}' +
    '#Title li{height:16px;padding-top:3px;}' +
    '#sYear,#sMonth {width:44px;height:16px;border:1px solid #88A9C9;border-right:0;padding-top:2px;}' +
    '#SArr {width:19px;height:18px;background:#E2EBF4;font-size:10px;text-align:center;color:#44b6ae;border:1px solid #88A9C9;border-left:0;margin-right:3px;cursor:pointer;}' +
    '#Select {width:63px;border:1px solid #8AC;background:#FFF;height:146px;}' +
    '#Select a{height:16px;padding-left:3px;}' +
    '#Select a:hover{color:#000;background:#E2EBF4;padding-top:2px;border:0;}' +
    '#Select #SelectBn {background:#0defdf;font-size:8px;line-height:7px;height:7px;text-align:center;color:#44b6ae;}' +
    '#Select #SelectBn:hover{background:#7682C1;color:#FFF;}#SArr,#sYear,#sMonth{float:left;}' +
    '#SelectYear,#SelectMonth{position:absolute;top:21px;z-index:1;overflow:hidden;display:none;}' +
    '--></style><scr' +
    'ipt language="JavaScript">var mdown,sy,ey,sm,em,HideSelect=1,CurrentSelect,year,month,day;function Scroll(str,key)' +
    '{var Html="",s,e,obj,d;' +
    'if(key=="Y"){s=sy;e=ey;obj="SelectYearItem";d="年";}if(key=="M"){s=sm;e=em;obj="SelectMonthItem";d="";}' +
    'if(str=="Up"){s--;e--;}if(str=="Next"){s++;e++;}' +
    'if(key=="Y"){sy=s;ey=e;}if(key=="M"){if(s<1)s=1;if(s>6)s=6;if(e<7)e=7;if(e>12)e=12;sm=s;em=e;}' +
    'for(i=s;i<=e;i++){Html+=\'<a href="javascript:;" onclick="parent.Calendar_Modif(\';Html+=(key=="M")?year+\',\'+i+\',\'+day+\');">\'+parent.MonthText[i]:i+\',\'+month+\',\'+day+\');">\'+i;Html+=d+"</a>";}' +
    'document.getElementById(obj).innerHTML=Html;}' +
    'function KeyDown(str){if(str==38){Scroll("Up",CurrentSelect);}if(str==40){Scroll("Next",CurrentSelect);}}' +
    'function ShowSelect(str,str2){HideSelect=0;HSelect();Scroll(\'\',str2);document.getElementById(str).style.display="block";CurrentSelect=str2}' +
    'function HSelect(){document.getElementById("SelectYear").style.display="none";document.getElementById("SelectMonth").style.display="none";}' +
    'function Calendar_GetDate(y,m,d)' +
    '{var objEvent=window.event||arguments.callee.caller.arguments[0];' +
    'var srcElement=objEvent.srcElement;' +
    'if(!srcElement){srcElement=objEvent.target;}' +
    'if(srcElement.tagName=="A"){parent.Calendar_GetDate(y,m,srcElement.innerHTML);}}' +
    'document.onclick=function(){if(HideSelect){HSelect();}HideSelect=1;}</scr' +
    'ipt><body onkeydown="KeyDown(event.keyCode);">' +
    '<div id="SelectYear" style="left:31px;" onclick="ShowSelect(\'SelectYear\',\'Y\');"><div id="Select"><a href="javascript:;" onmousedown="mdown=window.setInterval(\'Scroll(\\\'Up\\\',\\\'Y\\\')\',50);" onmouseup="window.clearInterval(mdown);" onmouseout="window.clearInterval(mdown);" id="SelectBn" style="border-bottom:1px solid #44b6ae;"><font face="Webdings">&#53;</font></a><div id="SelectYearItem">' +
    '</div><a href="javascript:;" onmousedown="mdown=window.setInterval(\'Scroll(\\\'Next\\\',\\\'Y\\\')\',50);" onmouseup="window.clearInterval(mdown);" onmouseout="window.clearInterval(mdown);" id="SelectBn" style="border-top:1px solid #44b6ae;"><font face="Webdings">&#54;</font></a></div></div>' +
    '<div id="SelectMonth" style="left:99px;" onclick="ShowSelect(\'SelectMonth\',\'M\');"><div id="Select"><a href="javascript:;" onmousedown="mdown=window.setInterval(\'Scroll(\\\'Up\\\',\\\'M\\\')\',50);" onmouseup="window.clearInterval(mdown);" onmouseout="window.clearInterval(mdown);" id="SelectBn" style="border-bottom:1px solid #44b6ae;"><font face="Webdings">&#53;</font></a><div id="SelectMonthItem">' +
    '</div><a href="javascript:;" onmousedown="mdown=window.setInterval(\'Scroll(\\\'Next\\\',\\\'M\\\')\',50);" onmouseup="window.clearInterval(mdown);" onmouseout="window.clearInterval(mdown);" id="SelectBn" style="border-top:1px solid #44b6ae;"><font face="Webdings">&#54;</font></a></div></div>';

function Calendar_Show(year, month, day) {
    var content;
    var date = new Date();
    var DayNum = (IsLeapYear(year) && month == 2) ? MonthDNum[month] + 1 : MonthDNum[month];
    var date2 = new Date(year, month - 1, 1)
    var start = date2.getDay();
    var date2 = null;
    var Trn = Math.ceil((DayNum + start) / 7);
    var PrNum = 1;
    content = '<scr' +
        'ipt language="JavaScript">year=' + year + ',month=' + month + ',day=' + day + ',sy=year-3;ey=year+3;' +
        'sm=(month-3<1)?1:(+month-3>6)?6:month-3;' +
        'em=(month+3<7)?7:(month+3>12)?12:month+3;</scr' +
        'ipt><div style="border:1px solid #6A84C8;height:' + (64 + 21 * Trn) + 'px;"><ul><li style="background:#FFF;"></li>' +
        '<li style="width:144px;background:#FFF;padding-bottom:1px;" id="SelectArea"><div id="sYear" onclick="ShowSelect(\'SelectYear\',\'Y\');">' + year + '年</div><div id="SArr" onclick="ShowSelect(\'SelectYear\',\'Y\');"><font face="Webdings">&#54;</font></div>' +
        '<div id="sMonth" onclick="ShowSelect(\'SelectMonth\',\'M\');">' + MonthText[month] + '</div><div id="SArr" onclick="ShowSelect(\'SelectMonth\',\'M\');"><font face="Webdings">&#54;</font></div>';
    content += '</li>' +
        '<li><a href="javascript:parent.Calendar_hide();">×</a></li></ul>' +
        '<div id="Tools"><ul>' +
        '<li><a href="javascript:parent.Calendar_Modif(' + (year - 1) + ',' + month + ',' + day + ');">&laquo;</a></li>' +
        '<li><a href="javascript:parent.Calendar_Modif(' + year + ',' + (month - 1) + ',' + day + ')";>&#8249;</a></li>';
    if (Calendar_obj2) {
        content += '<li style="width:42px;"><a href="javascript:parent.Calendar_GetDate(' + year + ',' + month + ',0);">本月</a></li>' +
            '<li style="width:43px;"><a href="javascript:parent.Calendar_GetDate(' + date.getFullYear() + ',' + (date.getMonth() + 1) + ',' + date.getDate() + ');">本日</a></li>';
    } else {
        content += '<li style="width:86px;"><a href="javascript:parent.Calendar_GetDate(' + date.getFullYear() + ',' + (date.getMonth() + 1) + ',' + date.getDate() + ');">选择本日</a></li>';
    }
    content += '<li><a href="javascript:parent.Calendar_Modif(' + year + ',' + (month + 1) + ',' + day + ');">&#8250;</a></li>' +
        '<li><a href="javascript:parent.Calendar_Modif(' + (year + 1) + ',' + month + ',' + day + ');">&raquo;</a></li>' +
        '</ul></div>' +
        '<div id="Title"><ul><li style="color:#F00;">日</li><li>一</li><li>二</li><li>三</li><li>四</li><li>五</li><li style="color:#F00;">六</li></ul></div>' +
        '<ul onClick="javascript:Calendar_GetDate(' + year + ',' + month + ',-1);">';
    var date = null;
    if (start > 0) {
        content += '<li style="width:' + (start * 29 - 1) + 'px;"></li>';
    }
    for (i = 1; i <= DayNum; i++) {
        content += '<li><a href="#"'
        content += (day == PrNum) ? ' class="CurrentDate"' : '';
        content += ((i + start) % 7 < 2) ? ' style="color:#F00;"' : '';
        content += '>' + PrNum + '</a></li>';
        PrNum++;
    }
    content += '</ul></div>';
//层定位
    var Calendar = document.getElementById('divCalendar');
    Calendar.style.height = 66 + 21 * Trn + 'px';		//框架高度
    divCalendar.document.open()
    divCalendar.document.write(HeadMsg + content);
    divCalendar.document.close()
    var p = Calendar_obj;
    var eT = 0, eL = 0, eH = 0, dH = 0, sT = 0, eP = p
    while (p && p.tagName != "BODY") {
        eT += p.offsetTop;		//距窗口顶部距离
        eL += p.offsetLeft;		//距窗口左边距离
        p = p.offsetParent;
    }
    var eH = eP.offsetHeight;				//输入框高度
    var eW = eP.offsetWidth;				//输入框宽度
    var dH = Calendar.style.pixelHeight;	//框架高度
    Calendar.style.top = (eT + dH > document.body.scrollHeight && eT - dH >= 0) ? eT - dH + 'px' : eT + eH + 'px';
    Calendar.style.left = (eL + 206 > document.body.scrollWidth && eL - 206 + eW >= 0) ? eL - 206 + eW + 'px' : eL + 'px';
    setTimeout("document.getElementById('divCalendar').style.display=''", 1);
}

/*是否润年*/
function IsLeapYear(y) {
    if (0 == y % 4 && ((y % 100 != 0) || (y % 400 == 0))) {
        return true;
    } else {
        return false;
    }
}

function Calendar_Modif(y, m, d) {
    if (m < 1) {
        m = 12;
        y = y - 1;
    }
    if (m > 12) {
        m = 1;
        y = y + 1;
    }
    var num = (IsLeapYear(y) && m == 2) ? MonthDNum[m] + 1 : MonthDNum[m];
    if (d > num) {
        d = num;
    }
    Calendar_Show(y, m, d)
}

function Calendar(obj, obj2) {
    var p = Calendar_obj = document.getElementById(obj);
    Calendar_obj2 = document.getElementById(obj2);
    var re = /\d{4}-\d{1,2}-\d{1,2}/;
    var arr, Sdate;
    arr = re.exec(Calendar_obj.value);
    if (arr != null) {
        Sdate = Calendar_obj.value;
    } else {
        var mydate = new Date();
        Sdate = mydate.getFullYear() + '-' + (mydate.getMonth() + 1) + '-' + mydate.getDate();
    }
    Sdate = Sdate.split("-");
    Calendar_Show(parseInt(Sdate[0]), parseInt(Sdate[1]), parseInt(Sdate[2]));
}

function Calendar_GetDate(y, m, d) {
    if (!Calendar_obj2 || d != 0) {
        if (d > 0) {
            Calendar_obj.value = y + '-' + m + '-' + d;
        } else {
            var objEvent = divCalendar.event || arguments.callee.caller.arguments[0];
            var srcElement = objEvent.srcElement;
            if (!srcElement) {
                srcElement = objEvent.target;
            }
            Calendar_obj.value = y + '-' + m + '-' + srcElement.innerHTML;
        }
    } else {
        if (IsLeapYear(y) && m == 2) {
            num = MonthDNum[m] + 1;
        } else {
            num = MonthDNum[m];
        }
        Calendar_obj.value = y + '-' + m + '-1';
        Calendar_obj2.value = y + '-' + m + '-' + num;
    }
    Calendar_hide();
}

function Calendar_hide() {
    document.getElementById("divCalendar").style.display = "none";
}

document.onclick = Calendar_hide;